Audacious Sound Cable - Oxygen Free and Combination Sound Cables Applications:High End audio transmission, stereo, professional sound, and studio requirement. Sunlight Resistant. Code Restrictions: OK for power-limited circuits, except those in risers and plenums. Features: Available in 500 ft. or 1000 ft. lengths tangle free box or reel-in-a box wire dispensing system. Sequential footage markings. Construction:High-strand oxygen free copper conductors, super flexible polyvinyl-chloride jacket.